Set of two stainless steel adjustable window locks designed to control tilt and limit how far a window can open. Compact and corrosion resistant, these stoppers provide precise opening control for improved comfort and practical use without changing the window appearance. Key benefits Controlled ventilation: Set the exact opening gap to allow fresh air while preventing full sash travel. Adjustable tilt control: Holds the window in a tilted position for safe, stable ventilation or cleaning access. Durable construction: Stainless steel material resists wear for reliable long term performance. Simple and discreet: Low profile design minimizes visual impact while providing effective stopping and locking. Dual pack: Two pieces allow use on a single window with two contact points or on two separate windows. How it solves common problems Prevents accidental over opening that can let in drafts or allow objects to fall out. Limits window movement during wind gusts to reduce rattling and unexpected slamming. Provides repeatable, adjustable stops so windows can be opened to the same position every time. Key attributes Quantity: two pieces per set. Material: stainless steel for strength and resistance to corrosion and wear. Function: adjustable window lock, tilt control and stopper to set and limit opening. Performance: stable holding in partial open positions and consistent adjustment over repeated use. Practical applications Residential ventilation: Set windows to a controlled gap for steady airflow in living rooms and bedrooms without full opening. Child and pet areas: Limit how far windows can open in children rooms or pet areas to reduce accidental wide openings. Maintenance and cleaning: Hold a window in a tilted position for safer access during interior or exterior cleaning. Compatibility note Intended for use where controlled or limited window opening is required. Check the window frame and sash interface to confirm the stopper can be mounted and engaged as needed. This adjustable window stopper offers straightforward functionality, durable stainless steel construction, and a compact profile for everyday window control and practical use.